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リチウムイオンバッテリー用のシリコンベースアノード

Silicon-based Anodes for Li-ion Patent Landscape

発行 France Innovation Scientifique et Transfert (FIST SA) 商品コード 231284
出版日 ページ情報 英文
納期: 即日から翌営業日
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本日の銀行送金レート: 1USD=102.12円で換算しております。
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リチウムイオンバッテリー用のシリコンベースアノード Silicon-based Anodes for Li-ion Patent Landscape
出版日: 2015年07月31日 ページ情報: 英文
概要

現在市販されているアノード(負極)材料の99%は炭素ベースのものですが、リチウムイオン二次電池の大容量化を求める声の高まりとともに、新たな材料を探し求める動きが本格化しています。とりわけ大きな期待を集めているのは、理論放電容量が4200mAh/gと大きいシリコンですが、最初の充放電サイクルで容量が大幅に減少してしまうという問題が本格的な普及を妨げる大きな要因となっています。このため、容量の減少を防ぎ、全般的な性能を高めるための研究開発が盛んに進められており、特許の申請件数も増えています。

当レポートは、リチウムイオンバッテリー用のシリコンベースアノードを取り上げ、関連する特許の現状と主要企業の戦略を分析したもので、世界と各地域における知的財産の現状や特許の出願状況、主要企業各社の動向なども盛り込み、概略下記の構成でおとどけします。

総論

  • 技術の概要
  • 市場の概要
  • 新たなバッテリー技術開発のロードマップ
  • 特許の照会

世界の現状分析

  • 特許出願の推移(1990〜2010年)
  • 主な出願者
  • 主な機関出願者の出願状況
  • 主な産業出願者の出願状況
  • 主な共同出願
  • 産業出願者と機関出願者による出願
  • 優先出願の状況
  • 優先出願の展開
  • 出願地と発明者出身国の比較対照
  • 特許存続期間延長状況
  • ポートフォリオの内訳
  • 最も引用されている特許群
  • 最も延長されている特許郡
  • 承認率の分析−日本、米国、欧州

各地域の動向(出願状況、主な出願者、存続期間延長、発明者による主な共同出願、出願者による主な共同出願、出願者の内訳)

  • 日本
  • 韓国
  • 米国とカナダ
  • 中国と台湾
  • 欧州

結論

調査対象となった出願者が保有する特許ポートフォリオの平均存続期間

引用特許の分析

主な出願者(特許出願状況、期間延長状況、特許の内容、シリコンのタイプ、形態、製造方法)

  • ソニー
  • Samsung SDI
  • LG Chemical
  • キヤノン
  • 3M
  • セイコーインスツル
  • 三井金属鉱業

このページに掲載されている内容は最新版と異なる場合があります。詳細はお問い合わせください。

目次

Carbon based materials are the almost only current commercial anode material (99% of the anode material's market). The need for higher capacity for lithium-ion secondary cells has led to a search for replacement materials. Silicon would be a potential alternative of active material because its intercalation capacity is the highest known of 4200mAh/g, corresponding to a composition of Si5Li22. However, the large capacity fade observed during initial cycling has prevented the silicon anode from being widely adopted. Massive R&D and patent applications filings were conducted in order to prevent this capacity fading and improve overall performance of silicon-based anodes. This technology has seen an exponential increase in patent filings in the recent years boosted by sectors as the electric vehicle industry and consumer electronics (smartphones, tablets, Ultra-mobile PC...)

The present report analyses the patent environment and notably highlights the strategy of current major players. These major patent holders are end-users and fully integrated players (Sony, LG Chemical, Samsung SDI, Panasonic-Sanyo), battery manufacturers (GS Yuasa, Hitachi, Hitachi Maxell...), material manufacturers (Shin-Etsu Chemical, Sumitomo Metal Industries, Mitsui Mining Smelting, 3M...) and institutional players (US department of energy, Argonne National Laboratory, Chinese Academy of Science, AIST (JP), KAIST (KR)...).

In a competitive sector starting in the 1990s with important portfolio being filed as of 2003, this « IP Overview - Si-based anodes for Li-ion batteries 2015 » provides you with a comprehensive panorama of the intellectual property landscape (over 4800 patent families analyzed) and helps you:

  • Position your company's R&D and IP Portfolio
  • Identify key inventors and key players involved in specific type of Silicon (amorphous, crystalline, SiOx, Si graphite, Alloy...)
  • Understand the collaboration networks and theirs dynamics
  • Apprehend industrial property strategies

N.B.: A three months access to the full patent database is also included.

Overview

The need for higher capacity for lithium-ion secondary cells has led to a search for replacement materials. Silicon is a potential alternative of active material because its intercalation capacity is the highest known (4200mAh/g).

The 2015 patent landscape features :

Also included in the landscape:

  • Granting rate analysis
  • Breakdown of the portfolio
  • Map of priority filings and extensions
  • Typology of industrial and institutional patent portfolios
  • Top cited family patent analysisNEW
  • Patent portfolio of main industrial applicants

Breakdown of the portfolio by ...

Distributions over time

Evolution of family priority filings by year

Co-filings among applicants and research teams

Main co-filings among applicants or inventors

Breakdown of the portfolio

For each breakdown and focus, the applicant position

Breakdown of the portfolio

For each breakdown and focus, the patent families classification

Table of Contents(SAMPLE)

Generalities

  • Brief outline of the technology
  • Brief outline of the market
  • Roadmap of emerging battery technologies
  • Patent Query

World analysis

  • Evolution of patent filings (1990-2010)
  • Main applicants
  • Breakdown of filings of the main institutional applicants over time
  • Breakdown of filings of the main industrial applicants over time
  • Main co-filings between applicants
  • Industrial & institutional filings over time
  • Map of priority filings
  • Evolution of priority filings
  • Comparison between place of filings and origin of the inventors
  • Map of extensions
  • Breakdown of the Portfolio
  • Most cited patent families
  • Most extended patent families
  • Granting rate analysis - JP, US, EP

Regional focus

  • Japan focus
  • South Korea focus
  • USA - Canada focus
  • China - Taiwan focus
  • Europe focus

For each regional is presented the following information:

  • Industrial & institutional filings over time
  • Main applicants
  • Extensions
  • Main co-filings between inventors
  • Main co-filings between applicants
  • Breakdown by applicant

Conclusion

Portfolio average age of the studied applicants

Citation a analysis

Applicant focus

  • Sony
  • Samsung SDI
  • LG Chemical
  • Canon
  • 3M
  • Seiko Instruments
  • Mitsui Mining & Smelting
  • Sumitomo Metal Industries
  • Panasonic
  • Sanyo
  • Nexeon
  • Shin-Etsu Chemical
  • Amprius
  • GS Yuasa

For each applicants focus is presented the following information:

  • Evolution of patent filings
  • Map of extensions
  • Extension policy
  • Portfolio mapping: content of the patents
  • Portfolio mapping: type of Si in anodes
  • Portfolio mapping: Form Factors
  • Portfolio mapping: Manufacturing methods
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